The History Place
The History Place: Statistics of the Holocaust
This page from The History Place has a chart with the number of Jewish people killed in the Holocaust. Nearly 6 million Jewish people were murdered. This site is disturbing its apparent accuracy of the Jewish slaughter.
PBS
Pbs: Auschwitz: Inside the Nazi State
Companion website to the documentary about Auschwitz, the infamous World War II concentration camp. Includes biographies, glossary, timelines and historically significant photos.
American-Israeli Cooperative Enterprise
Jewish Virtual Library: Drancy Concentration Camp
Describes what the Drancy concentration/death camp in France was like during WWII.
Other
Auschwitz Alphabet: Zyklon B (Poison Gas)
This page describes how the Nazis used Zyklon B as a gassing agent.